Roller table having a folding structure

Abstract

A folding structure (2), is provided to which one or more rollers (3) are coupled, which is constituted by an articulated one-piece construction, formed of straight sections (2a, 2b) joined together with articulated joints that rotate around a vertical axis (4) and movement of the sections on the horizontal plane, and hinged joints that rotate around a horizontal axis (5) and movement of the sections on the vertical plane. In a use position, it has a rectangular frame shape, while in a folded position it forms an elongated and flat compact block. The upper part of the structure (2) has recesses (8) with protruding nipples (9), suitable for being inserted into holes (10) made on the ends (3a) of the roller (3) axis; while dampers (11) are disposed in the lower part. There is a joint that rotates around a vertical axis (4), and another hinged joint that rotates around a horizontal axis (5).

Claims

1. A roller assembly with folding structure that is configured from a structure to which one or more rollers are coupled, the one or more rollers comprising respective ends for resting on the structure, rotate freely, in such a manner adapted for a user to ride a bicycle thereon, or by adding a treadmill on the structure, adapted for the user to walk or run thereon, is characterised in that the structure comprises an articulated one-piece construction, which is formed from a plurality of transverse sections and longitudinal sections joined together by articulated joints that rotate around a vertical axis such that movement of the plurality of transverse sections and longitudinal sections are on a horizontal plane, and hinged joints that rotate around a horizontal axis such that movement of the plurality of transverse sections and longitudinal sections are on the vertical plane; and in that said structure when in a use position, is unfolded and is configured as a rectangular frame, while in a folded position forms an elongated and flat compact block, wherein on an upper part of the structure further comprises recesses having protruding nipples, the protruding nipples configured for being inserted into holes on ends of a roller axis of one of the one or more rollers.

2. The roller assembly with folding structure, according to claim 1, characterised in that the plurality of transverse sections and longitudinal sections are two transverse sections, corresponding to minor sides of the rectangular frame, and four longitudinal sections corresponding to respective halves of major sides of said rectangular frame, the rectangular frame comprising four corners formed between transverse and longitudinal sections, wherein each corner comprises an articulated joint of the articulated joints, each articulated joint that rotates around a vertical axis allows an angle of rotation between said longitudinal sections of up to 270; and the hinged joints are two joints, each of the two joints is between the longitudinal sections that determine the two halves of the major sides of the rectangular frame, each of the hinged joint rotates around a horizontal axis which allows an angle of rotation of up to 180 between said longitudinal sections.

3. The roller assembly with folding structure, according to claim 2, characterised in that the articulated joints that rotate around a vertical axis with an angle of rotation of 270, comprise a screw that acts as the vertical axis and penetrates respective interconnected ends of the transverse sections and the longitudinal sections to be joined together.

4. The roller assembly with folding structure, according to claim 3, characterised in that the hinged joints that rotate around a horizontal axis between longitudinal sections that determine the two halves of the major sides of the rectangular frame are carried out by corresponding strips that join together each of said longitudinal sections.

5. The roller assembly with folding structure, according to claim 1, further comprising dampers made of anti-slip material on a lower part of the structure.

6. The roller assembly with folding structure, according to claim 1, characterised in that the structure, from the use position configured as of the rectangular frame, is susceptible to being folded in half and then back upon itself, along a minor central axis, in a U shape and in a zig-zag fold to form the elongated and flat compact block that constitutes the folded position thereof.

7. The roller assembly with folding structure, according to claim 1, characterised in that the structure has up to ten recesses suitable to fix one of the one or more rollers, allowing variation of the position of, at least, one of the one or more rollers to adapt the separation therebetween to different bicycle sizes.

Description

DESCRIPTION OF THE DRAWINGS

(1) For the purpose of complementing this description and helping to better understand the characteristics of the substrate of the invention, a set of drawings is attached to this specification as an integral part thereof, wherein the following has been represented in an illustrative and non-limiting manner:

(2) FIG. 1 shows a top plan view of an embodiment of the roller assembly with folding structure object of the invention, represented in its use position;

(3) FIG. 2 shows a perspective view of the detail of one of the articulated corners of the structure, in which the configuration of the articulated joint with an angle of rotation of 270 can be observed;

(4) FIGS. 3, 4 and 5 show different views of the structure of the roller assembly of the invention in its three folding phases, where FIGS. 3 and 4 are top plan views of the first two folding phases of the structure, and FIG. 5 is an elevational view of the structure completely folded and represented next to the rollers that are coupled thereto for use thereof; and

(5) FIG. 6 shows another top plan view of the roller assembly assembled, in this case, in this case incorporating a treadmill.

PREFERRED EMBODIMENT OF THE INVENTION

(6) In light of the aforementioned figures, and in accordance with the numbering adopted, a preferred embodiment of the roller assembly with folding structure object of the invention is represented, comprising the parts and elements indicated and described in detail below.

(7) Therefore, based on the top plan view shown in FIG. 1, the frame (1) in question is configured from a structure (2) whereto at least three rollers (3) are coupled which, resting on their respective ends, rotate freely, in such a manner that a bicycle (not shown) can be ridden thereon or, by adding a treadmill (12) (see FIG. 6), it can be used to walk or run.

(8) This structure (2) is folding and, in its use position (FIG. 1) has a rectangular frame shape which can be completely folded to form, in its folded position (FIG. 5), an elongated and flat compact block which, logically, occupies much less space.

(9) The structure (2) consists of an articulated one-piece construction formed of a plurality of straight sections (2a, 2b) joined together which, preferably, comprise two transverse sections (2a) corresponding to the minor sides of the rectangular frame, and four longitudinal sections (2) corresponding to the respective halves of the major sides of said rectangular frame.

(10) All of these sections are coupled therebetween by means of articulated joints that rotate around a vertical axis (4) and, therefore, movement of the sections is along a horizontal plane; and hinged joints that rotate around a horizontal axis (5) and, consequently, movement of the sections along a vertical plane; comprising, in each of the joints between the transverse (2a) and longitudinal (2b) sections that determine the four corners of the rectangular frame, an articulated joint that rotates a vertical axis (4) which allows an angle of rotation between said sections of up to 270; and, in the two joints between longitudinal sections (2b) that determine the two halves of the major sides of the rectangular frame, a hinged joint that rotates around a horizontal axis (5) which allows an angle of rotation of up to 180 between said sections.

(11) More specifically, the articulated joints that rotate around a vertical axis (4) with an angle of rotation of 270, as can be observed in the detail of FIG. 2, comprise a screw (6) which acts as a vertical axis that penetrates the respective ends of the sections (2a and 2b) to be joined together, which are interconnected in such a manner that one of said sections has an inverted U-shaped cavity that determines two tips (2c) at the end of the section that protrude slightly beyond the point of intersection with the other section to be joined, while this other section, in turn, has a tip (2d) that protrudes frontally and laterally from the centre of the end of the section itself and is fitted by coupling to said U-shaped cavity between the two tips (2c).

(12) For their part, the hinged joints that rotate horizontally (5) between longitudinal sections (2b) that determine the two halves of the major sides of the rectangular frame are carried out by means of corresponding strips (7) joined together and, on either side thereof, the respective ends of each of said sections (2b).

(13) Consequently, the structure (2) is folded and unfolded in just three movements, in such a manner that, as of the rectangular frame that it forms in its use position, to fold the structure it must firstly be folded back upon itself along the hinged joints that rotate horizontally (5) disposed coincident with the minor central axis of said frame, whereupon the structure adopts a U-shaped configuration where the transverse sections (2a) and longitudinal sections (2b) overlap each other, as shown in FIG. 3.

(14) In second and third movements, the previously described assembly of U-shaped sections are folded in a zig-zag fold, i.e. in opposite directions, along the articulated joints that rotate around a vertical axis (4) that join them together, whereupon, as shown in FIG. 5, they are grouped together and parallel therebetween, forming the aforementioned elongated block.

(15) In order to assemble the rollers, the existence of recesses (8) with protruding nipples (9) have been envisaged on the upper side of the longitudinal sections (2b) of the structure (2), suitable for being inserted into holes (10) made for such purpose on the ends (3a) of the roller (3) axis, envisaging the sufficient number thereof to dispose, at least, two rollers on the rear part thereof and one roller on the front part thereof. Also, more recesses (8) than required to fix the three rollers (3) have been envisaged, thus allowing variation in the position of, at least, one of said rollers (3) in order to adapt the separation therebetween to different bicycle sizes.

(16) Lastly, the existence of dampers (11) made of rubber or similar anti-slip material has been envisaged on the lower part of the structure (2) in order to avoid possible movements and/or noises caused by the vibration and movement on using the roller assembly.

(17) Also, in all the figures it can be observed how the structure (2), which is preferably made of plastic material, has been hollowed out and has reinforcement rib, which lighten the weight of the structure and reinforce it, respectively.

(18) Having sufficiently described the nature of the present invention, as well as the manner in which to practice it, it is not deemed necessary to provide further explain for any person skilled in the art to understand its scope and the advantages arising therefrom, stating that, within its essentiality, it may be practiced in other embodiments that differ in detail from that indicated by way of example, and which would also be included in scope of protection being requested, provided that the basic principle thereof is not altered, changed or modified.